# Problem 19
#
# You are given the following information, but you may prefer to do 
# some research for yourself.
# 
#     - 1 Jan 1900 was a Monday.
#     - Thirty days has September, 
#       April, June and November.
#       All the rest have thirty-one,
#       Saving February alone,
#       Which has twenty-eight, rain or shine.
#       And on leap years, twenty-nine.
#     - A leap year occurs on any year evenly divisible by 4, 
#       but not on a century unless it is divisible by 400.
#
# How many Sundays fell on the first of the month during the twentieth 
# century (1 Jan 1901 to 31 Dec 2000)?

ans = 0
print "->", ans
